基于特征融合的多环复杂电网区间的潮流计算方法  

Power flow calculation method based on feature fusion for multi-loop complex grid sections

作　　者：宋佳磊 盛东 谢赢朋 林虎 朱晓凯 SONG Jialei;SHENG Dong;XIE Yingpeng;LIN Hu;ZHU Xiaokai(State Grid Wuyi Power Supply company,Jinhua 321000,China)

机构地区：[1]国网浙江省电力有限公司武义县供电公司,浙江金华321000

出　　处：《电气应用》2022年第9期64-70,共7页Electrotechnical Application

摘　　要：为提高复杂电网区间潮流计算结果的准确性,设计一个基于特征融合的多环复杂电网区间的潮流计算方法。分析电网的多层拓扑结构,计算电网区间仿射,将区间电网看作一个空间坐标系,建立二次潮流方程,采用特征融合技术,建立区间潮流优化模型,完成多环复杂电网区间的潮流计算。将电压幅值计算作为对照值,衡量潮流计算效果的指标,以IEEE 33节点配电网模型作为实例进行测试,实例测试结果表明,在有PV节点接入与没有PV节点接入的情况下,此次研究的复杂电网区间潮流计算方法都能够准确计算出电压幅值,在不同负荷比重倍数下,电压幅值误差也较小,异常负荷最高峰值低于0.08,可实际应用到多环复杂电网区间潮流计算中。In order to improve the accuracy of power flow calculation results in complex power grid sections,a power flow calculation method for multi ring complex power grid sections based on feature fusion is designed.The multi-layer topology of power grid is analyzed,the interval affine of power grid is calculated,the interval power grid is regarded as a spatial coordinate system,the quadratic power flow equation is established,and the interval power flow optimization model is established by using feature fusion technology to complete the power flow calculation of multi ring complex power grid.The voltage amplitude calculation is taken as the comparison value to measure the effect of power flow calculation.The example test results show that the power flow calculation method in complex power grid section in this study can accurately calculate the voltage amplitude with and without PV node access.Under different load proportion multiples,the voltage amplitude error is also small,and the maximum peak value of abnormal load is less than 0.08,It can be applied to the power flow calculation of multi loop complex power grid.

关 键 词：特征融合 多环复杂电网 潮流 区间放射 拓扑分析 仿射计算 

分 类 号：TM744[电气工程—电力系统及自动化]